Improvement in nail-machines



UNiTnn STATES PATENT Ormea.

McManus a co.,

OF SAME PLAGE.

MPROVEMENT IN NAIL-MACHINES.

Specification forming part of Letters Patent No. 42,993, dated May 3l, 1864.

To all uhom it may concern:

Be it known that I, Rock Lauro, of Read ing, Berks county, Pennsylvania, have invented certain new and useful Improvements in Nail-Machines; and I do hereby declare the following to bc a full, clear, and exact detcription of the saine, reference being had to the accompanying drawings, and to the let ters of reference maiked thereon.

My invention relates to improvements iii the well known machines for cutting from a plate angular strips of iron and forming the strips int) nails; and my improvement consists ofa device for discharging the nails from the bedpiece, between which and an upper kiiit'e the points are formed.

In order to enable others skilled iii the art to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the accom panyin g drawings, which form a part of this specification, Figure l 'is a vertical section of sufficient of a nailniachine to illustrate my improvements; Fig. 2, a transverse vertical section on the line l 2, Fig. l; Fig. 3, a ground plan, with the upper movable knife and lower stationary knife rcnioved; Fig. 4, a perspective view of part oft process.

chine, or the bars may be secured to the end of vibrating arms.

The peculiar duties of my improvement will be best understood by reference to the perspective views, Figs. 5 and 6. A piece ot iron tirst cut from aI plate. In order to form this into the desired nail, it first has to be compressed laterally from about the point a' to the ot' the tapering form represented in Fig. 5 is rounded edges of thenail as seen at s, Fig. 6, thus contracting the taper piece iii width and leaving` the head partially formed, the coinpletion of the head being effected by another In order to finish the nail it has to the machine; Fig. 5, a perspective view ofthe t be compressed at the point so as to be reduced uuformed nail as it is cut trom the plate, and Fig. 6 a perspective view of the finished nail.

\ from the form represented in Fig. 5 to that shown iii Fig. 6, and after this it has to be bimilarletters refer to similar parts through- `discharged clear of the dies.

out the several views.

The class of nail-iiiachiiies to which my iinprovciiients relate are ot' that ordinary constructionl so well known to those familiar with this class ot' machinery, and so generally used that it has not been deemed necessary to show in the accompanying drawings anymore of the operating parts than such as are immediately connected with my improvements.

My improvements relate especially to con1- pressing of the point ot' the nail and to the l clearing ot' the latter from the dies after it has y been completed.

'l 1t will be observed ou reference to the pert spective view ot' Fig. 4 that tlic cud ofthe L piece D is furnished with a projection, c, the y upper surface of which is recessed and inclined. t The end of the piece D has a horizontal con- A represents a portion of the frame-work of l cave recess corresponding with a similar rc.

au ordinary nail-machine, in the front portion of which are ribs c a, forming a box or chamber for receiving the bed-pieces, which in the present instance is composed of the three pieces B, C, and D, Fig. 3, fitted close to each set-screws b Z) or other suitable appliances. Above the bed-pieces (which will be more parl cess on the reciprocating bar G, and the intermediate piece, O, has a vertical recess for the l reception ot' the uppcrend ofthe arm I, which t is secured to the shaft .I,the latterbeiiig hung in suitable boxes attached to the fraine-work other and confined laterally to the box by the of the machine and operated through the me dium of any suitable system of rods or levers in connection with the driving or any other t'icnlarly alluded to hereinafter) and within the rotating shaft of the machine. The plate from which the nails have to be made being subi jected to the action ot' the knives F and E, the

saine box is placed the horizontal stationary knife E., which is secured to its place by a setpoint y, thus forming the opposite partiallylatter cut from the said plate the tapering the. pressure received, it is apt to adhere.

piece represented in Fig. 5. The severed piece ot' iron falls with its taper edge onto the recessed and inclined ledge formed by the proieetion e on the portion B ot' the. bed-piece, and at the same time the bar G advances so that the angular piece of iron is confined and compressed between the concave recess of the said bar and that ot' the piece I), thereby producing the necessary contraction of the taperpiece between the points described above in reference to Fig. 5. rlhe head is completed bythe advancing bar H, and the compression of the point of the nail alluded to above in reference to Fig. (i is com pleted by being compressed between the lower edge ofthe knif'e F and the inclined recessed ledge ot' the projection e on the end ofthe piece B, for it should be understood that the lower edge of this knit'e is slightly inclined, the corner A, Fig. 2, being lower than the corner u, so that the knife and ledge may impart to the point ofthe nail the desired taper. As the bars G and H and knife F begin to recede, it is important that the completed nail should be at once removed clear of the dies, to which, through This clearance is effected by the arln I ofthe shaft J, to which such a sudden movement is given from some operating part of the machine tha-t the upper end of the arm moves quickly Within the vertical slot of the portion C ofthe bed-piece and pushes the nail clear away from the recessed ledge ot' the piece B, thus making Way for another tapering strip of metal to be acted upon as above.

Although I have shown the bed-piece as being made of three bars, B, C, and D, it may be made in one solid plate.

I claim as my invention and desire to secure by Letters Patent Discharging the finished nail from the dies by means of the arm I, operating Within a slot in the bed-piece, as set forth, and actuated by any moving part ofl the machine, as specified.

In testimony whereot'i have signed my name to this specification in the presence of two subscribing Witnesses.

ROCK LARIO.

. Vitnesses A .HonA'rIo Monats, Jona` QUrMnY. 

